Granted Patent
Utility
US 5,377,471 · App. 08/213,947
Prefabricated sleeper for anchored and resilient hardwood floor system
Inventor:
Michael W. Niese
Patented Case
View Patent ↗
Granted: Jan 3, 1995
Filed: Mar 16, 1994
Inventor
Michael W. Niese
Assignee (at issue)
Robbins, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.